Following is error log, a hard error, while I was updating from older version.

Please help me resolve the problem.

=================================
Command Line is: -i -l1033 -e
Language to use is: English
Resolve APPDATA Folder
Checking for PDF reDirect.
Removing Printer PDF reDirect v2......DONE.
Attempting to remove old pdf reDirect Printer Driver......FOUND.
Warning: Could not remove the old PDF reDirect Printer Driver
Look for old pdf reDirect Port Monitor......FOUND.
Remove old pdf reDirect Port Monitor......NOT REMOVED. (3008)
Minor or Expected Error 75/3008

Delete old Port Monitor DLL......FAILED. (0)
Copy new pdf reDirect DLL......
Minor or Expected Error 70/0
Copy new pdf reDirect DLL......SUCCESS.
Installing new PDF reDirect Port Monitor......FAILED. (3006)
Error Occured as follows:
 - Error# =  0
 - DLLErr =  3006
***************************
*      ERROR MESSAGE      *
***************************
Sorry. An error occured while Installing new PDF reDirect Port Monitor......FAILED. (3006)
   - Error Number = 0:
   - DLL Error Number = 3006: The specified print monitor has already been installed.

This error may occur if the Windows Print Spooler is currently "BUSY".

You can try the following:
   1. Reboot your computer and then try installing again, or
   2. Restart the Print Spooler Service and then try installing again.

If the error persists, you may not have permission to install/remove printers. You can:
   1. Contact your computer administrator for help, or
   2. Visit the forum on our web site for help.

Do you want to visit our support forum for help on installation errors?
 
***************************
*       MEMORY DUMP       *
***************************
 
pData() As Byte =
 0 = 0
End pData()
 
MyDriverInfo3 As DRIVER_INFO_3
  .cVersion As Long =  0
  .pConfigFile As String =
  .pDataFile As String =
  .pDefaultDataType As String =
  .pDependentFiles As String =
  .pDriverPath As String =
  .pEnvironment As String =
  .pHelpFile As String =
  .pMonitorName As String =
  .PName As String =
End MyDriverInfo3
 
MyPrinterInfo2() As PRINTER_INFO_2
  Index = 0
    .pPrinterName As String =
    .pDriverName As String =
    .pServerName As String =
    .pShareName As String =
    .pPortName As String =
    .pLocation As String =
    .pComment As String =
  Index = 1
    .pPrinterName As String = PDF reDirect v2
    .pDriverName As String = PDF reDirect Pro
    .pServerName As String =
    .pShareName As String =
    .pPortName As String = PDF_REDIRECT_PORT:
    .pLocation As String =
    .pComment As String = PDF reDirect provided by EXP Systems
  Index = 2
    .pPrinterName As String = Microsoft XPS Document Writer
    .pDriverName As String = Microsoft XPS Document Writer
    .pServerName As String =
    .pShareName As String =
    .pPortName As String = XPSPort:
    .pLocation As String =
    .pComment As String =
  Index = 3
    .pPrinterName As String = Microsoft Office Document Image Writer
    .pDriverName As String = Microsoft Office Document Image Writer Driver
    .pServerName As String =
    .pShareName As String =
    .pPortName As String = Microsoft Document Imaging Writer Port:
    .pLocation As String =
    .pComment As String =
  Index = 4
    .pPrinterName As String = Lexmark 2300 Series
    .pDriverName As String = Lexmark 2300 Series
    .pServerName As String =
    .pShareName As String =
    .pPortName As String = USB001
    .pLocation As String =
    .pComment As String =
End MyPrinterInfo2()
 
MyMonitorInfo2 As MONITOR_INFO_2
  .pDLLName = PDFreDirectMonNT.dll
  .pEnvironment =
  .PName = PDF reDirect Monitor
End MyMonitorInfo2
 
MyPrinterDefaults4Delete As PRINTER_DEFAULTS4Delete
  .pDatatype As Long = 0
  .DesiredAccess As Long = 983052
End MyPrinterDefaults
 
OSInfo As OSVERSIONINFO
  .dwBuildNumber As Long = 2600
  .dwMajorVersion As Long = 5
  .dwMinorVersion As Long = 1
  .dwOSVersionInfoSize As Long = 148
  .dwPlatformId As Long = 2
  .szCSDVersion As String * 128 = Service Pack 2, v.2149
End OSInfo
 
64bit CPU = 0
 
hPrinter As Long = 1430284
MyKey As String =
MyKeyString As String =
MyKeyValue As Long = 0
Result As Long = 0
MyError As String = Sorry. An error occured while Installing new PDF reDirect Port Monitor......FAILED. (3006)
   - Error Number = 0:
   - DLL Error Number = 3006: The specified print monitor has already been installed.

This error may occur if the Windows Print Spooler is currently "BUSY".

You can try the following:
   1. Reboot your computer and then try installing again, or
   2. Restart the Print Spooler Service and then try installing again.

If the error persists, you may not have permission to install/remove printers. You can:
   1. Contact your computer administrator for help, or
   2. Visit the forum on our web site for help.

Do you want to visit our support forum for help on installation errors?
Level As Long = 0
pNeeded As Long = 0
I As Long = 5
InstallPrinter As Boolean =  True
ShowErrors As Boolean =  True
System_Dir As String = C:\WINDOWS\system32\
MyUserAppPath As String = C:\Documents and Settings\Chandra\Application Data\PDF reDirect\
Monitor_DLL_Name As String = PDFreDirectMonNT.dll
Printer_Driver_Dir As String = C:\Program Files\PDF reDirect\Drivers\Win 2K-XP\
System_Printer_Dir As String =
Generic Error Code as Long =  0
DLL Error Code as Long =  3006
===============